/Engine/Plugins/Experimental/TextureMediaPlayer/Source/TextureMediaPlayer/Public/ITextureMediaPlayerModule.h
Players will call this so that this module can return this video sink in OpenPlayer.
void RegisterVideoSink ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ITextureMediaPlayer](API\Plugins\TextureMediaPlayer\ITextureMediaPlayer), ESPMode::ThreadSafe > InVideoSink )